Sock



FIG. 1 is a perspective view of a sock showing my new design;

FIG. 2 is a side view of the sock alone;

FIG. 3 is a top view thereof;

FIG. 4 is a front view thereof

FIG. 5 is a back view thereof; and,

FIG. 6 is a bottom view thereof.

The broken line showing of a leg in FIG. 1 is included for the purpose of showing environmental portions of the sock and forms no part of the claimed design.

The dashed lines shown on the side of the sock in FIGS. 1 and 2 represent conventional stitching. 

The ornamental design for a sock, as shown and described. 